Isaiah b



J.` B. CONKLIN.

StubbleV Cutter.

man QQ* i l Il FNG. 80,394.

Patented July 28,` 1868.

illlllll PETERS hummm g @uiten lttrtes atent @frn- Letters Patent No. 80,394, dated July 28, 1868.

IMPROVEMENT IN STUBBLB-GUTTER.

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TO ALL WHOM IT MAY CONCERN: p

Be it known-that I, ISAIAH B. OONKLIN, of Baltimore city, in the county of Bal-timore, and State of Mary- 1 land, have invented a new and improved stubble-Cutter; and I do hereby declare that the following is a. full,

clear, and'vexact description thereof, reference being had to the accompanying-drawings, making a part of this specieation, in which- Figure 1 is plan view of theimproved machine for cutting stubble. Figure 2 is'an elevation of ouc side ofthe machine, with one wheel removedfshowing the cutters depressed. Figure 3 is a. front elevation yof the machine, with `the `cutters depressed. v Figure 4 is a longitudinal section, taken in a vertical plane through the centre of the machine, showing theV cutters elevated. A

Similar letters of-ref'erence indicate corresponding parts in 'the several figures. This invention reiates to certain novel v`improvements on machinery which is chieydesigned for cutting up corn-stubble, so as to avoid the labor and expense hitherto attending the eradication of corn-stubble from land upon which it is desired to grow grass and other cropsrequiring the use of the scythe or harvesting-machinery to cnt.

The nature of my invention consists in a gang of cutting-swords, arranged in close pro'ximity to each other, and applied to a vertically-adjustable frame, which is. supported upon tra-nsportingwheels, said swords or cutters being adapted for entering the soil a proper depth, and cutting up corn-stubble, or the rootsoi` corn which are left in theground after harvesting the stalks, as will be hereinafter explained.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, A A represent two transporting-wheels, which are applied to an axle-B, the central portion of which is bent upward, so as to form an arch, for a purpose which will be hereinafter `explained. To this axle B an open triangular frame, D, is rigidly secured, whiclris adapted for receiving within it a triangular cutter-carrying frame, E, as shown in fig. 1. The front end or angle of the main frame D should be provided with a draughtpolc, or other means whereby animals can he conveniently hitched toit, for drawing the machine along.

The frame E is provided, on its lower side, with two rows of cutting-bladesor swords, T, which rows diverge from the front central sword backward, and thus present a great number of cutting-edges, arranged inlines, which are very close together, as shown in iig. 3. Each one ofthe swords or cutting-blades is curved backward, so as to make a drawing cut inl its action upon stubble,V and cach cutter' is secured rigidly, at its upper end, between jaws Aof a holding-portion, s, by means of a Vtransverse pin or bolt, as shown in igs. 2 and 4. If desirable, both ends of cach cutter may be perforated, and adapted for being secured to its holder, s, so that, when the cutting-edge, near the lower end. of a cutter, wears dull, the 'cutter can be reversed, and asharp cutting-edge brought into operation. l f

Each one of the holders s; is constructed with a stud upon it-,which is passedupthrough the frame E, and held rigidly in place by means of a key inserted `through it, in the manner shown in the drawings, or in any other suitable way. v t

The frame E is provided with semi-cylindrical portions, d, arranged in front and in rear of-the axle B, as shown in Eg. l, and extending perpendicularly above the upper surfaceof said frame, which portions are adapted to receive guides c, that are securely fastened to the frame D, and made so as to extend above Vand below this frame, terminating at their lowerends vin foot-pieces C', which aiI'ord bearings for frame E when it is fully depressed, to bring the cutters into action. p

The pieces c and (Z are designed to ,serve as means whereby'the frame E will'be held parallel to thc plane of frame D, when the former is raised or depressed. It' desirable, the guides C may be constructedand applied to the frame D, that they can he adjusted vertically, and fixed at any desired height, for the purpose of sustaining thc frame E, upon the feet c', at any desired distance from the` ground, according to the depth at which it is desired to run the cutters in the grou-nfl.

. l I y At ah intermediate point between theA front'and rear endslof the frame E,9;nd secured tela cross-beam of this frame, is en eye-piece, to which a -short link, H, is pivoted and to this'lnk an arm, G, which projects from ah'orizontal transverse rock-shaft, F, is pivoted. The rock-shaft' F is supported in bearngsff, upon the main frame D, and is provided with a hand-lever, g, having a catch-pin, i," on one side,l which will engage with. any one of several holes made through a segment,V h. This'seg-ment his secured tothe main frame D, and i's designed for receiving the catch-pin z', on lever g, and holding this lever and the frame E at any required height; also, .for sustaining said frame in the elevated position shown iniigl, with the cutters out of operation, when it is desired-to move the machine from one place to another, and to turn the machine at the endsof rows of stubble. By arching theax'le B, the frame Eis allowed to be 'elerated above the` axes of the Vtransporting-whe'els, or above the frame D, to such n 'height that the cutters will not be liablel to strike a stump or` other object when 'raisedut of operation. The arched axle also serves,asan Velevated support for the drivers seat C, which is H`monntedupon stands a a, which are secured to the axle,l as'shown in the drawings. `When a gang of cutters, constructed and arranged as I 'have above described, are drawn over a field abounding in-corn-stubble, end allowed to dip into the ground about six inches, they will cut up and so reduce the stubble that itmay be readily turned intov rot by a subsequentA use of the plow, thereby leaving the eld free from obstructions which would be liable to injure the machinery used for cutting grass or other crops grown upon such'iield. v V

' Having described my invention, what I claim as new, and desire to. secure by Letters Patent, is-

1. Curved or inclined cuttingLswords T, arranged and applied to thefraineof a carriage, and adapted `forA cutting corn-stubble, substantially as described. I v l 2.5 Cutting-swords T, applied to a vertically-adjustable triangular frameQE, which is supported by draught- '."i frame D, substantially as described.

' ISAIAH B. CONKLIN. f

Witnesses: n

.T EMORY WEATHERBY, J milfhunter -Wmrnkr- 

